<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch, getCurrentInstance, reactive } from 'vue'
const { $api } = getCurrentInstance().appContext.config.globalProperties
import { useUserStore } from '@/stores/index'
import { useRouter } from 'vue-router'
const router = useRouter()
const userStore = useUserStore()
const isRegister = ref(false)
const form = ref()

// 整个的用于提交的form数据对象
const formModel = reactive({
  userName: 'admin',
  userPwd: '123456',
  repassword: ''
})
// console.log(formModel)
// 账户密码规则
const rules = {
  userName: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 2, max: 10, message: '用户名必须是 2-10位 的字符', trigger: 'blur' }
  ],
  userPwd: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是 6-15位 的非空字符',
      trigger: 'blur'
    }
  ],
  repassword: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是 6-15位 的非空字符',
      trigger: 'blur'
    },
    {
      validator: (rule, value, callback) => {
        // 判断 value 和 当前 form 中收集的 password 是否一致
        if (value !== formModel.userPwd) {
          callback(new Error('两次输入密码不一致'))
        } else {
          console.log('校验成功')
          callback() // 就算校验成功，也需要callback
        }
      },
      trigger: 'blur'
    }
  ]
}

// 切换的时候，重置表单内容
watch(isRegister, () => {
  formModel.value = {
    userName: '',
    userPwd: '',
    repassword: ''
  }
})
// 登录
const login = async () => {
  // 表单校验
  await form.value.validate((valid) => {
    if (valid) {
      $api.login(formModel).then((res) => {
        userStore.saveUserInfo(res)
        // console.log(res)
        router.push('/')
      })
    } else {
      return false
    }
  })
}

// 注册
const register = async () => {
  // 表单校验
  await form.value.validate((valid) => {
    if (valid) {
      $api.register(formModel).then((res) => {
        console.log(res)
        isRegister.value = false
      })
    }
  })
}
</script>
<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册相关表单 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="userName">
          <el-input
            v-model="formModel.userName"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="userPwd">
          <el-input
            v-model="formModel.userPwd"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="register"
            class="button"
            type="primary"
            auto-insert-space
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>

      <!-- 登录相关表单 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-else
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="userName">
          <el-input
            v-model="formModel.userName"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="userPwd">
          <el-input
            v-model="formModel.userPwd"
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="login"
            class="button"
            type="primary"
            auto-insert-space
            >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;
  .bg {
    background: url('@/assets/images/erp_back.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }
  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;
    .title {
      margin: 0 auto;
    }
    .button {
      width: 100%;
    }
    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
